[MI] Dyno Don Headers and GMMG/MadHammer Exhaust

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Old Sep 16, 2023 | 02:18 PM
  #1  
Rocker069's Avatar
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From: Sertling Heights, Michigan
Car: 1986 Iroc
Engine: L94 6.2
Transmission: T56
Axle/Gears: 9"/Truetrac/4.11s
Dyno Don Headers and GMMG/MadHammer Exhaust

I'm clearing out room in the garage after my LS swap and I've got:

A set of Dyno Don's headers with the single 3" Y-pipe. 1 3/4" primaries, no AIR.
Bought them in 2012 and didn't get the car on the road til 2021. They have roughly 1,000 miles on them. They're still in very good shape with no dings or dents. Ceramic coated, but some very light surface rusting is popping through in some spots.
$600

GMMG/MadHammer chambered catback. Bought in 2013, same as the headers has about 1,000 miles on it. Comes with the quad tips. Very good condition, does have some red overspray on both outsides of the tailpipes from when the car was painted, but can be scuffed off.
$600

If you're interested in both, $1000.

The combination does have a good sound to it. To hear a clip of it at 25:05:

Local pickup only in Sterling Heights, MI 48312.






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Old Sep 16, 2023 | 07:55 PM
  #2  
blacksunshine'91's Avatar
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From: Moorpark, CA
Car: '91 GTA, '92 T/A Convertible
Engine: GTA: 350 w/Vortec heads, T/A: 305
Transmission: Pro-built 700R4
Axle/Gears: GTA: 3.27, T/A: 2.73
Re: Dyno Don Headers and GMMG/MadHammer Exhaust

Wish I was closer. For whomever is interested, that GMMG exhaust is absolutely the BEST sounding exhaust for third gens IMO. GLWS.
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Old Sep 16, 2023 | 07:58 PM
  #3  
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From: Austin, TX
Re: Dyno Don Headers and GMMG/MadHammer Exhaust

Ugh I want that GMMG setup
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Old Sep 17, 2023 | 03:36 PM
  #4  
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From: Pflugerville, Texas
Car: 92 Heritage Camaro Z28
Engine: 350 TPI
Transmission: auto
Axle/Gears: 3.23 Limited Slip
Re: Dyno Don Headers and GMMG/MadHammer Exhaust

Same here. Wish he was in Texas.
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Old Sep 21, 2023 | 06:49 PM
  #5  
zya5point0's Avatar
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Posts: 472
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From: pa
Car: 87 IROC
Engine: 350
Transmission: auto
Axle/Gears: 3.23
Re: Dyno Don Headers and GMMG/MadHammer Exhaust

Good price for a cool setup! I'm several hours away, but if you still have this in a couple weeks, and if i can sell my new headers for close to what i paid I'll make the road trip! I'll be in touch!
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Old Oct 24, 2023 | 08:29 PM
  #6  
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From: Fayette County, OH
Car: basic third gens
Engine: that I like
Transmission: to restore
Axle/Gears: and enjoy
Re: Dyno Don Headers and GMMG/MadHammer Exhaust

Have these sold yet?
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Old Oct 24, 2023 | 08:30 PM
  #7  
Rocker069's Avatar
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Joined: Feb 2005
Posts: 15
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From: Sertling Heights, Michigan
Car: 1986 Iroc
Engine: L94 6.2
Transmission: T56
Axle/Gears: 9"/Truetrac/4.11s
Re: Dyno Don Headers and GMMG/MadHammer Exhaust

Originally Posted by 86blackiroc
Have these sold yet?
Not yet, I still have them available.
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